Flow-injection analysis is applied to sample introduction in conjunction with automated hydride generation and AAS for the determination of As and Se in environmental samples such as soil, vegetation, waters, sediments, and industrial wastes. A large sample loop was used to provide high sensitivitie
Determination of selenium in foodstuffs using spectrofluorometry and hydride generation atomic absorption spectrometry
β Scribed by Ujang Tinggi; Conor Reilly; Carla M. Patterson
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 845 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0889-1575
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π SIMILAR VOLUMES
Hydride generated in a mixing coil was collected in a gas-liquid separator, dehydrated in a dehydration trap, and swept into an electrically heated furnace by manipulating electromagnetic relays and timers. Interferences from transition metals were eliminated by the Chelex 100 separation. Sharp peak
The particulate6 are collected on Whatman 41 cellulose filters and decomposed with sulfuric acid and hydrogen peroxide; bismuth is then measured by hydride generation/atomic absorption spectrometry. The detection limit is 0.08 ng m" if 500 m' of air is filtered through an 11-cm filter. Generally, th
A systematic study was made of mterferences of As(V), BI(III), Se(N), SMIIJ), Sn(IV) and Te(IV) m the determmatton of As(V), Sb(III), Se(N) and S&V) by hydride-generatlon atonuc absorption spectrometry The mterfenng elements were apphed m concentrations between 1 ng ml-' and 100 pg ml-' The effect o
Iron(II1) has a very effective releasing effect on the depressive interference from copper(I1) on the determination of selenium by hydride-generation atomic absorption spectrometry. In solutions with 100 mg 1-l Cu(II), 10 pg 1-l Se(IV) and 2.0 mol 1-l HCl, the absorbance obtained was much higher wh